Clark County, Washington: Diversifying Metro county. In 2024, voted D+7%. Republican peak: R+57 in 1904.
Key facts
- 2024 presidential margin
- D+7MIT Election Lab
- Political typology
- Diversifying MetroAkashic typology
- Population
- 516,9592024 5-year
- Median household income
- $97,5362024 5-year
- White (non-Hispanic)
- 75.2%2024 5-year
- Black
- 2.2%2024 5-year
- Hispanic / Latino
- 12.3%2024 5-year
- Peak Democratic margin
- D+42 in 1936MIT Election Lab
- Peak Republican margin
- R+57 in 1904MIT Election Lab
- Most similar
- Washington County, MN · similarity 0.87
2024 results by precinct
2024 precinct map of Clark CountyPrecinct-level 2024 presidential results for Clark County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −4.7% |
| 1896 | +1.6% |
| 1900 | −22.3% |
| 1904 | −56.7% |
| 1908 | −28.4% |
| 1912 | +8.5% |
| 1916 | −7.7% |
| 1920 | −20.6% |
| 1924 | −29.3% |
| 1928 | −26.7% |
| 1932 | +27.7% |
| 1936 | +42.3% |
| 1940 | +19.0% |
| 1944 | +20.8% |
| 1948 | +18.6% |
| 1952 | −2.2% |
| 1956 | +0.9% |
| 1960 | +1.7% |
| 1964 | +40.8% |
| 1968 | +9.4% |
| 1972 | −2.7% |
| 1976 | +5.1% |
| 1980 | −3.7% |
| 1984 | −7.1% |
| 1988 | +3.5% |
| 1992 | +5.4% |
| 1996 | +4.8% |
| 2000 | −4.0% |
| 2004 | −5.3% |
| 2008 | +6.1% |
| 2012 | +0.2% |
| 2016 | +0.2% |
| 2020 | +5.1% |
| 2024 | +6.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 143,206 | 123,998 | 276,578 | ||
| D | 140,324 | 126,303 | 275,403 | ||
| D | 92,757 | 92,441 | 208,485 | ||
| D | 93,382 | 92,951 | 192,176 | ||
| D | 95,356 | 84,212 | 182,764 | ||
| R | 79,538 | 88,646 | 170,495 | ||
| R | 61,767 | 67,219 | 135,544 | ||
| D | 52,254 | 46,794 | 112,730 | ||
| D | 42,648 | 36,906 | 106,536 | ||
| D | 40,021 | 37,285 | 78,306 | ||
| R | 35,248 | 40,681 | 76,957 | ||
| R | 30,584 | 33,223 | 72,075 | ||
| D | 31,080 | 27,938 | 61,201 | ||
| R | 27,179 | 28,775 | 58,569 | ||
| D | 23,046 | 18,858 | 44,474 | ||
| D | 29,341 | 12,300 | 41,790 | ||
| D | 20,771 | 20,080 | 40,868 | ||
| D | 19,665 | 19,330 | 39,046 | ||
| R | 18,153 | 18,973 | 37,328 | ||
| D | 17,154 | 11,546 | 30,132 | ||
| D | 18,861 | 12,312 | 31,549 | ||
| D | 12,931 | 8,776 | 21,925 | ||
| D | 12,714 | 4,868 | 18,554 | ||
| D | 9,104 | 4,901 | 15,160 | ||
| R | 4,467 | 7,786 | 12,442 | ||
| R | 2,004 | 5,215 | 10,954 | ||
| R | 2,941 | 4,852 | 9,295 | ||
| R | 3,728 | 4,419 | 9,032 | ||
| O | 2,549 | 1,872 | 8,010 | ||
| R | 1,250 | 2,416 | 4,107 | ||
| R | 515 | 2,436 | 3,389 | ||
| R | 1,025 | 1,668 | 2,882 | ||
| D | 1,547 | 1,497 | 3,104 | ||
| R | 966 | 1,089 | 2,596 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
16.3%
English
13.2%
Irish
10.2%
American
4.5%
Italian
3.0%
French
2.7%
Scottish
2.6%
African American
1.8%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 39.1 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$97,536
Clark County ranks in the top 5% of US counties.
Clark County$97,536
Washington$98,141
United States$80,734
Clark County ranks in the top 5% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
8.0%
Child poverty is below the national average.
Children under 188.6%
Working age (18–64)7.6%
Seniors (65+)9.6%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
83.5%
speak English only
Spanish6.8%
Other Indo-European5.2%
Asian & Pacific Islander3.8%
Other languages0.7%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 60.9% of residents not counted as adherents by any reporting body.
Clark County sits directly across the Columbia River from Portland, Oregon, drawing residents who work in the city but live in a no-income-tax state. That cross-border dynamic has produced a suburban electorate that has trended Democratic over the past decade while remaining genuinely contested.
The Democratic margin here reached forty-two points in 1936. Between 2020 and 2024 the county moved two points toward the Democratic candidate; the 2024 margin was seven points.
A population of 516,959, a 75% non-Hispanic-white share, and a median household income of $97,536 describe the county. The county's voting pattern over the last decade is most similar to that of Washington County and Sandoval County.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Clark County, Washington. Akashic. https://akashic.app/county/53011/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More diversifying metro counties
Frequently asked questions
How did Clark County, Washington vote in 2024?
In 2024, Clark County, Washington voted Democratic by 6.9 points (D+7), carried by the Democratic candidate. Out of 276,578 votes cast, 143,206 went Democratic and 123,998 went Republican.
What is Clark County, Washington's political typology?
Akashic places Clark County, Washington in the "Diversifying Metro" typology — Mid-size metropolitan counties growing more diverse and trending Democratic. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 19 times, Republican 14 times, and other 1 times.
When did Clark County, Washington last vote Republican?
The most recent presidential election in which Clark County, Washington voted Republican was 2004.
How many people live in Clark County, Washington?
Clark County, Washington has a population of 516,959 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Clark County, Washington?
Median household income in Clark County, Washington is $97,536 — above the national median of $80,734. The Washington state median is $98,141.
What is the political history of Clark County, Washington?
Akashic tracks 38 presidential elections in Clark County, Washington from 1876 to 2024. Of those, 19 went Democratic and 14 went Republican. The county's typology — "Diversifying Metro" — captures where that record, its demographics, and its recent swing place it among American communities.